The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
"Published by authority of the National Council."
"The Revised code of laws as prepared by Messrs. Wm. P. Boudinot, D.H. Ross and J.A. Scales, commissioners, appointed under the provisions of an act ... approved November 19th, 1873, and as amended by the joint committee of the National Council"--p.